曝光臺 注意防騙 網曝天貓店富美金盛家居專營店坑蒙拐騙欺詐消費者

and details of a person, aircraft, etc.

The air traffic controllers are trying to
establish the identity of the aircraft.

ident
idle idle /ad(ə)l/ noun the state of an
engine when it is running but not delivering
power to move the vehicle or aircraft
 verb to turn over slowly without
providing enough power to move the
vehicle or aircraft
After starting a piston
engine from cold, it is good practice
to allow it to idle for a short time before
opening the throttle wide.
idle cut-off idle cut-off /ad(ə)l kt ɒf/ noun a
position on the mixture control of a
idle rpm 116
light aircraft which allows the engine to
be shut down without leaving a combustible
fuel/air mixture in the engine
idle rpm idle rpm /ad(ə)l ɑ pi em/ noun
the speed at which a piston engine turns
when it is not running fast enough to
move the vehicle or aircraft, i.e. on a
light aircraft when the throttle is almost
closed
idling idling /ad(ə)lŋ/ noun a state in
which the engine is turning over slowly
without providing enough power to
move the vehicle or aircraft
idling speed idling speed /ad(ə)lŋ spid/ noun
the rpm of the engine when it is idling

After start-up, the engine accelerates
up to idling speed.
Before the engine
is stopped, it should normally be
allowed to run for a short period at
idling speed to ensure gradual cooling.
IF IF abbreviation 1. instrument flying 2.
intermediate frequency
IFR IFR abbreviation instrument flight
rules
ignite ignite /$|nat/ verb to burn or cause
to burn
The spark plug ignites the
fuel/air mixture.
The air/fuel mixture
ignites.
igniter igniter /$|natə/ noun a device for
starting gas turbine engines
An electric
spark from the igniter plug starts
combustion.
ignition ignition /$|nʃ(ə)n/ noun 1. the starting
of burning of a substance
Satisfactory
ignition depends on the quality of
the fuel. 2. the moment, in an internal
combustion engine, when a spark from
the spark plug causes the fuel/air mixture
to burn
Ignition should occur just
before top-dead-centre. 3. an electrical
system, usually powered by a battery or
magneto, that provides the spark to
ignite the fuel mixture in an internalcombustion
engine
Ignition problems
are a source of many engine failures. 4.
a switch that activates the ignition system
 the key is in the ignition the key
is in its position in the ignition lock
ignition key ignition key /$|nʃ(ə)n ki/ noun a
key used to switch on the ignition
ignition lock ignition lock /$|nʃ(ə)n lɒk/ noun a
key-operated switch for activating the
ignition circuit of an aircraft or a vehicle
illuminate illuminate /|lumnet/ verb 1. to
give light to an otherwise dark area
A
flare illuminates the ground below it. 2.
to show a light or become bright
When
the aircraft is 5 knots above stalling
speed, a warning lamp illuminates.
illumination illumination /|lum|neʃ(ə)n/ noun
light
Batteries provide about 20 minutes
illumination for the lamp.  daylight
illumination the amount of light
in normal daytime conditions
illustrate illustrate /ləstret/ verb 1. to demonstrate
or explain clearly, often by
using pictures
Contour charts illustrate
the horizontal distribution of
height above mean sea level. 2. to show
as an example
A number of aviation
disasters have illustrated the importance
of clear, correct use of language
in R/T (Radiotelephony) communications.
illustration illustration /lə|streʃ(ə)n/ noun 1.
a picture which explains something

The illustration on page 23 shows a
cross section of a typical gas-turbine
engine. 2. an example
The mechanics
of the föhn wind provide a good illustration
of the adiabatic process in action.
ILS ILS abbreviation instrument landing
system
ILS glideslope ILS glideslope /a el es
$ladsləυp/ noun a radio beam in an
ILS which gives vertical guidance
The
angle of the glide slope is usually about
three degrees to the horizontal.

glideslope
ILS locator beacon ILS locator beacon /a el es ləυ|
ketə bik(ə)n/ noun a non-directional
　
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